AlkantarClanX12
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<?php
/**
* File: Version1.php
*
* NOTE: Fixes have been included in this file; look for "W3TC FIX".
*/
namespace W3TCL\Minify;
/**
* Class Minify_Controller_Version1
* @package Minify
*/
/**
* Controller class for emulating version 1 of minify.php (mostly a proof-of-concept)
*
* <code>
* Minify::serve('Version1');
* </code>
*
* @package Minify
* @author Stephen Clay <steve@mrclay.org>
*/
class Minify_Controller_Version1 extends Minify_Controller_Base {
/**
* Set up groups of files as sources
*
* @param array $options controller and Minify options
* @return array Minify options
*
*/
public function setupSources($options) {
// PHP insecure by default: realpath() and other FS functions can't handle null bytes.
if (isset($_GET['files'])) {
$_GET['files'] = str_replace("\x00", '', (string) sanitize_text_field( wp_unslash( $_GET['files'] ) ) );
}
self::_setupDefines();
if (MINIFY_USE_CACHE) {
$cacheDir = defined('MINIFY_CACHE_DIR')
? MINIFY_CACHE_DIR
: '';
Minify::setCache($cacheDir);
}
$options['badRequestHeader'] = 'HTTP/1.0 404 Not Found';
$options['contentTypeCharset'] = MINIFY_ENCODING;
// The following restrictions are to limit the URLs that minify will
// respond to. Ideally there should be only one way to reference a file.
$files = isset( $_GET['files'] ) ? sanitize_text_field( wp_unslash( $_GET['files'] ) ) : '';
if (! isset($files)
// verify at least one file, files are single comma separated,
// and are all same extension
|| ! preg_match('/^[^,]+\\.(css|js)(,[^,]+\\.\\1)*$/', $files, $m)
// no "//" (makes URL rewriting easier)
|| strpos($files, '//') !== false
// no "\"
|| strpos($files, '\\') !== false
// no "./"
|| preg_match('/(?:^|[^\\.])\\.\\//', $files)
) {
return $options;
}
$files = explode(',', $files);
if (count($files) > MINIFY_MAX_FILES) {
return $options;
}
// W3TC FIX: Override $_SERVER['DOCUMENT_ROOT'] if enabled in settings.
$docroot = \W3TC\Util_Environment::document_root();
// strings for prepending to relative/absolute paths
$prependRelPaths = dirname( isset( $_SERVER['SCRIPT_FILENAME'] ) ? sanitize_text_field( wp_unslash( $_SERVER['SCRIPT_FILENAME'] ) ) : '' )
. DIRECTORY_SEPARATOR;
$prependAbsPaths = $docroot;
$goodFiles = array();
$hasBadSource = false;
$allowDirs = isset($options['allowDirs'])
? $options['allowDirs']
: MINIFY_BASE_DIR;
foreach ($files as $file) {
// prepend appropriate string for abs/rel paths
$file = ($file[0] === '/' ? $prependAbsPaths : $prependRelPaths) . $file;
// make sure a real file!
$file = realpath($file);
// don't allow unsafe or duplicate files
if (parent::_fileIsSafe($file, $allowDirs)
&& !in_array($file, $goodFiles))
{
$goodFiles[] = $file;
$srcOptions = array(
'filepath' => $file
);
$this->sources[] = new Minify_Source($srcOptions);
} else {
$hasBadSource = true;
break;
}
}
if ($hasBadSource) {
$this->sources = array();
}
if (! MINIFY_REWRITE_CSS_URLS) {
$options['rewriteCssUris'] = false;
}
return $options;
}
private static function _setupDefines()
{
// W3TC FIX: Override $_SERVER['DOCUMENT_ROOT'] if enabled in settings.
$docroot = \W3TC\Util_Environment::document_root();
$defaults = array(
'MINIFY_BASE_DIR' => realpath($docroot)
,'MINIFY_ENCODING' => 'utf-8'
,'MINIFY_MAX_FILES' => 16
,'MINIFY_REWRITE_CSS_URLS' => true
,'MINIFY_USE_CACHE' => true
);
foreach ($defaults as $const => $val) {
if (! defined($const)) {
define($const, $val);
}
}
}
}